Continuous oven.



C. A. GORNDT.

CONTINUOUS OVEN.

ABPLIOATION FILED muze. 1908.

C. A. GORNDT.

CONTINUOUS OVEN.

APPLICATION FILED JAN.23. 190e.

Patented June 29, 14909.

2 sHBBTs-SHBBT 2.

IVII Uf Vlr/fag z CHARLES A. GORNDT, OF CHICAGO, ILLINOIS.

CONTINUOUS OVEN.

Speeication of Letters Patent.

Patented June 29, 1909.

Application led January 23, 1908, Serial No. 412,290.

T o all whom it may concern:

Be it known thot I, tuARLns A. GoRNnT, citizen of the United Stzites, residing :it Chicago, in the county of Cook :ind Stute el' Illinois, have invented certain new and usel'ul Im rovements in Continuous Ovens, of which the following is :t specification.

The present invention provid s en improved construction of oven of the continuous type, that is, in which the article to he baked is fed in one end ond after passing through the oven, is discherged et the opposite end, thereby admitting et' the operation being continuous, which is of sdvuntege over ovens of the intermittent type, which are supplied at intervals end discharged et stated periods.

For c full understanding of the invention ond the merits thereot` und also to acquire e knowledge of the details of construction ond the means for effecting the result, reference is to he had to the following description ond accom anying drawings.

Whi e the invention may be adopted to dierent forms end conditions by changes in the structure and minor details without departing from the spirit or essentiel features thereof, still the preferred embodiment is shown in the accompanying drawings, in which:

Figure 1 is e vertical central longitudinal section of e continuous oven embodying the invention. Fig. 2 is e transverse section thereof on the line :c-ct of 1. 3 is ohorizontel section on the line @/*fg/ ol. l. Fig. e is s horizontal section et e, portion oi the oven on the line 3i-e of 2. 5 is horizontal Section of e portion et' ther oven en the line 5-v5 of Fig. o is e.. detiiil view of e portion et e supporting truck tor the endless eonveyer, showing mo i clero-ly the rece-wey end the bells end spacer hers srrenged therein. Y is e cross section en the line swat of Fi o.

'Corresponding and like parts nre referred 'te in the following description und indicated in ell the views et' the drawings by the some reference characters.

As shown, the oven is prel'erebly constructed of brick work. The oven space 1 is comparatively long and is provided et opposite ends with openings 2 end 3 constituting, respectively, the inlet and the outlet, seid openings inclining outwardly and downwardly to prevent escape of the heat. An endless conveyor is arranged to operate in stuntial manner.

the space of the oven to mov(` the `article therethrough during thc process ol' linking. The endless conveyor is formed of n series of lotes 4, :ind o number of chains 5, the hitter roving the plates secured thereto in :my suh- 'lhe plates 4 muy be of any lenffth, width und thickness :ind their ends and rear edges ore bent to provide retaining flanges to hold the pons in )hice containing the articles to he baked. i series ol' shafts 6 extend through opposite longitudinal walls ofthe body ot' the oven and :ire mounted in bearings 7 secured to said wells. By mounting the shafts in this manner, the bearings :ire prevented from heating and may be lubricated so as to enehle the slnift to turn easily. The endless conveyor may be operated hy applying movement to any one of the shafts, the driving power being controllable to admit of varying the speed :it which the endless conveyor is to he driven so thiit the article to be baked may remain in the oven :i greater or less time. The receiving end of the endless conveyor )rejects hen yond the body ofthe oven, os in( iczited most clearly in Fig. 1', the upper run passing through the entrance opening 2 und thc lower run passing through :t lower opening S. The receiving or projecting end of the conveyor is supported by ineens similar to the intermediate und inner or reur end oi the conveyor. Sprocket wheels 9 mounted upon the shafts o, receive the upper und lower runs of the endless conveyor. 'lhe lower run of the endless conveyor is supported upon :i series of bulls 10 which :irc placed in roces 11 oi tj-form secured to the bottom ol' the oven. VThe hulls lO oro spaced :n.pzirt in the rau-es 11 hy hers 12. 'The upper run oi the endess conveyor' is supported in u manner simihir to the lower run. rlhe upper reces 13 nre mounted 'upon trsrisverso tubes or pipes 1st, which er supported :it their ends in opposite sidev wells oi7 the oven. fr framework l5 is interposed between erich tube ist and the roces l5?. so :is to support the hitter in e suhstrintinl monner. 1e roces 13 receive sup porting hulls l0 und spacing' bers l2. A

shoit C is loco-ted et erich end of the even space und is provided with sprocket wheels 9 to support the endless conve *er et 'the eX- tremities ol the oven. Itis to e understood that tho endless conveyor is supported intermediate of its extremities in o similar man ner in addition to the nicos 11 und 13. A rotary support 16 is provided for the lower conveyer at run of the endless conveyer -directl below the support at the entrance end of t e oven s ace, said rotary support consisting of a s aft and sprocket wheels mounted thereon.

The openings 2 and 3 are adapted to be closedat their outer ends by doors 17 and 18. The lower side of the discharge opening 3 is curved to fprovide a chute to effect proper delivery o the pans containing the read, crackers or other article baked. A hood 20 protects the rojecting end of the endless tIhe receiving end of the oven and also forms a shield for the operator. The upper portion 21 of the hood or protecting casing 1s hin ed or movable to admit of access to the end ess conveyer forplacing the pans in position upon the plates 4 as the conveyer moves, so that the baking operation may be continuous, that is, the baked article may be delivered through the discharge opening 3, while the article to be baked may be placed in position to enter the inlet opening 2. A series of defiectors 22 are pendent from the to of the `oven space and serve to confine the eat and prevent a circulation through the oven which would tend to carry oif the heat orto admit air which would have a cooling eect. Steam ipes 23 are provided at intervals in the lengt of the oven space to render the air humld to prevent burning of the bread, crackers or the like and to insure the baking of the same-in a moist atmosphere, thereby preventing dryingrand hardening of the same. A

he oven may be heated in any manner, and, as shown, a battery or gang of furnaces are provided, individual furnaces 24 being properly spaced at intervals in the length of the furnace. Each furnace is designed to heat a given space, the latter being separated by transverse partitions 25. A series of transverse lines 26 are formed in the lower f portion of the bod of the oven for distribs ace 1 and are in communication at one end.

` and again returns to the side oft ertical dues 29 connect the lower dues 26 with the upper flues 27 and the hot air, after circulating` transversely across the oven space, passes upward into the upper fines 28 e oven provided with the furnaces. Dam ers 30 control the direct outlet and rovi e an escape for the smoke. Vertical ues 31 are formed in the, partitions separating the sections allotted to the heating of eac furnace and are rovided with dampers 32. A s ace 33 is torrnedin the end and side walls o the body ofthe oven to prevent escape of the heat and to allow7 in a measure, for contraction and expansion. The tubes or pipes 14 are in communication at opposite'ends with longitudinal lues or passages 34 through which the hot air circulates, said hot air passing through the tubes or pipes 14 and thereby assisting materially in heating the oven space. It will thus be understood that the naces 24, and the endless conveyer is set in motion so that its upper run or portion travels from front to rear. TheP ans containing the bread, crackers, or the li e to be baked, are placed upon the lates 4 in successive order and are moved t rough the oven space and discharged automatically through the opening 3 and are received upon a bench or other support provided for their reception.

Having thus described the invention, what is claimed as new is:

1. In combination an oven having an inlet opening at one end and a discharge opening at the opposite end, doors for controlling said openings, deflectors located at intervals in the length of the oven and dependent from the roof thereof, and a conveyer arranged to operate in the lower portion of the oven s ace to gradually and automaticall move t e articles therethrough.

2. In combination, la body provided with an oven space, of some considerable longitudinal extent and provided at op osite ends with downwardly and outward y inclined openings forming, respectively, an inlet and an outlet, the lower wall of each opening being inclined outwardly and downwardly, an endless conveyer arranged in the oven space and adapted to travel so that its upper run moves from the inlet to the outlet, said conveyer having a ortion extended beyond the receiving end o dthe oven, su portin means for said endless conveyer, an a hoo inclosing and protecting the projecting end of the conveyer and comprising an upper movable portion to admit of charging the conveyer at the re'ceivin end.

3. 1n com ination, a body having a horizontally extended oven space and provided at one end with a downwardly and outwardly inclined outlet and having a downwardly and outwardly inclined inlet at its o and having a correspondingly inc med opening below said inlet, an endless conveyer arranged within the oven space' and having one end extended beyond the front of the oven with its upper run passing through the inlet` osite end.

means for the projecting end portion of said conveyer and comprising a movable part to admit of charging the said conveyer.

4. In combination, a body having a horizontally extended oven space provided at op osite ends with, respective an inlet an an outlet, each inclning outwardly and downwardlyfrom the upper portion of the oven space, an endless conveyer arran ed in the lower ortion of the oven space am having anencl) portion extended beyond the receivin `end of the oven, deflectors endent from t 'e roof of the oven at interva s in the length thereof, and protecting means inclosing the projecting end portion of the endless conveyer and comprising a movable portion to admit of charglng the said endless conveyer.

5. In combination, an oven, an endless conveyer arranged to operate in `the space thereof and having an end portion extended beyond the body of the oven and adapted to receive the article to be baked, and a hood inclosing the extended end of the endless conveyer and comprisin a lower fixed portion and an upper mova le portion.

.6.' A body havingan oven space, and passages in its walls outside of said oven space, tu es extended across the oven space and having their ends in communication with said passages, an endless conveyer arranged to operate in the oven space, and su porting means for the upper run of the endless conveyer mounted upon said tubes.

7. In combination, a body having an oven space and provided with passages in o )posite Walls exterior to said oven space, tubes extended across the oven space and mounted in opposite walls of the body and havin their ends in communication with the sai( passages, an endless conveyer arranged to operate in the oven space, frames mounted upon said tubes, race-ways connecting the upper ends of said frames, and rotary supports arranred in said race-ways and adapted to sustain the upper run of said endless conveyer.,

` In testimony whereof I ailix my signature in presence of two witnesses.

CHARLES A. GORNDT.

LL. s] 

